SEO (search engine optimization) was something I was dabbling in not too long ago because I wanted to increase my site traffic and one way to do it was to submit my site to directories. I did submit a couple of them, but ultimately, it didn't really work because my content wasn't niche enough. But hey, if you have good content, it just may work for you. Some people look at SEO software to help simplify their work. Some say, the best web directory is one who won't get you blacklisted by Google. Or maybe one that is user-friendly. Meaning, you don't really have to understand SEO too much to be able to get good ranking on Google. Maybe one day when I've found direction eh?